Which sentence is written using the most formal style? a. if you grant me the privilege of working at your company, get assured that i will do my utmost to work good. b. i've got a lot of customer service experience — like, a lot. i've worked in customer service for years and years. c. i have several years of customer service experience as well as extensive knowledge of the construction industry. d. i really like the way your company works, and think i would make an excellent customer service rep for you guys.